Manifolding



C. W. BRENN MANIFOLDING Oct. 31, 1939.

Original Filed Feb. .25, 1936 2 Sheets-Sheet 1 C. W. BRENN MANIFOLDINGOriginal Filed Feb. 25, 1936 2 Sheets-Sheet 2 Patented Oct. 31, 1939UNITED STATES MANIFOLDING Carl W. Brenn, Montclair, N. 1., assignor toAutographic Register Company, Hoboken, N. J.

Application February 25. 1936, Serial No. 65,556 Renewed June 6, 1938 21Claims.

bly, such, for instance, as is shown in U. S; pat-.

5 cut to me No. 1,999,535, issued April 30, 1935,

wherein a comparatively inexpensive box or casing made of cardboard,chip board, or other paper material is employed for containingpermanently sealed within the same a pile of zigzag l folded continuouswriting strips. In this type of register, which is to be discarded ordestroyed as soon as its contained writing strips have all been used up,the box comprises telescoping upper and lower sectionssecured togetherto prevent the 15 box being opened without substantial destructionthereof. Such box or casing has a writing opening in its top and carriesa platen or writing bed in the form of a shaped plate of metal or otherrelatively hard material below such openso ing; the manufacture of thecasing being conducted and completed in such a way that when the boxparts have been permanently joined as by cementing together the verticalwalls of the 7 two telescoping sections, the work sheets of the asleading set extend over such plate and are exposed through such opening.The result is that when this once-use casing is delivered to thepurchaser, the work sheets last mentioned are ready I for use and theleading edges thereof can be read- 80 ily grasped and advanced to bringa follower set of work sheets into writing position and, at the sametime, to advance the work sheets of said leading set to severingposition. i

One of the objects of the present invention is 35 to provide an improvedmetal writing plate having, among other advantages, novel cooperant re,-lations with other parts of the casing.

Another object is to provide a writing plate as' aforesaid, which alsoserves to provide means for 46 properly placing in the casing therequired number of carbon or transfer sheets and for holding thesesheets in such manner that the width of the casing need not be increasedanywhere along its length beyond that of the width of the pile 48 ofwriting strips.

Still another object of the invention, aimed at the provision of acasing which will be less expensive but more rigid and rugged thanheretofore, is to provide a novel type of lower section 50 for thecasing such that the same requires a relatively small total weight ofmaterial, yet with this material so distributed that surprising strengthand stiffness results in the finished lower section and particularly inthe complete casing when the 55' other parts thereof are added, evenwhen, as is now preferred, the upper section has all its walls merelysingle-ply sheets of fairly light weight chip board. In attaining thisobject in a. way now-preferred, the walls of the lower section areformed of corrugated paper board; these walls are all parts of a singlefolded blank wherein the corrugations run in the same direction; and yeteach of the two side walls, both of which are of two-ply thickness, isso established from said blank that the corrugations of one of its pliesrun at right angles to the corrugations of the other of its plies.

Other features and advantages will hereinafter appear. I

In the accompanying drawings which show the form of this invention atpresent preferred- Figure 1 is a top plan view of an assembly asmanufactured and shipped to the consumer for use, but with various partsvariously broken away to illustrate details of construction.

Fig. 2 is a longitudinal vertical section.

Fig. 3 is a transversevertical section taken on the line 3-3 of Fig. 2.

Fig. 4 is a perspective view of the lower section of the casing with thewriting plate applied thereto.

Fig. 5 is a perspective view showing the writing plate.

Fig. 6 is a plan view of the blank and corrugated board which is foldedup to establish all the walls of the lower section, but with thecorrugations not shown. I

Fig. 7 is a fragmentary sectional view taken on the line 1-1 of Fig. 1showing a detail of construction.

Fig. 8 is an enlarged detail view, showing con- 7 structionally certainelements omitted from Fig. 2 to simplify the latter where lines arenecessarily placed very close together.

The device of the present invention, in the exemplifying embodimentthereof illustrated in the drawings, included a container or box havingupper and lower telescoping sections In and II, the former being foldedup from a single blank of chip board and the latter folded up from asingle blank of corrugated board. This container, when the invention iscarried out in the preferred way, has a width whichdepends upon thewidth of the forms, tickets, or other work sheets which are to be packedtherein, the inner width of the lower section corresponding very closelyto that of the width of such work sheets. ,Thus, the pile of zigzagfolded continuous work or writing strips when the device is finallymanufactured will be disposed in the box as indicated at I2 in Figs. 2 u

and 3, except that ordinarily the height of the pile will beconsiderably greater than that shown in these views to flll completelythe storage capacity of the box.

Referring to the lower section ii, the same is folded up from a singleblank of corrugated board. In Fig. 6, this blank is shown, so far as theoutline thereof, cuts i3 therein, and scorings in thereon, areconcerned. The direction in which the corrugations extend over theblank, when the walls of the lower section have their corrugations runas shown in Figs. 1 to 4, is that indicated by the double line ilb inFig. 6. This blank is preferably so designed that when the portions Hare folded up to form the end walls of the lower section, and theportions i5 are folded up to form one ply of the side walls of the lowersection, thereby to establish the bottom wall ii of the lower section,and the four sections I'I at the four corners of the blank are folded upinside the side wall plies just mentioned and placed parallel therewith,to give each of said side walls a two-ply structure, edges of the twosections I! at one side of the blank will meet at the dot-and-dash lineI511 in Fig. 6 and edges of the two sections I! at the other side of theblank will meet at the dot-and-dash line IS!) in Fig. 5. Then thecorrugations of the inner plies of the side walls of the lower sectionII will run horizontally, while the corrugations of the outer plies ofthese walls, that is, of the plies furnished by the sections I1, willrun vertically.

When these two plies of each side wall are secured together all over bya suitable adhesive, as is preferred, exceedingly strong and stiff yetlight-weight side walls are provided. .In the lower section thus formed,the corrugations of the bottom wall It run longitudinally thereof asshown in Fig. 3, and the corrugations of the end walls ll run verticallyas shown in Fig. 4.

Referring to the upper section Hi, the papermaterial walls thereof aredesirably formed from a cruciform blank (not shown) of ordinary chipboard to provide a top wall l8, end walls I 9, and side walls 20, all ofsingle ply thickness.

As will be seen from a comparison of Figs. 1 and 3, box corner metalfasteners strips 21 are applied along the corner edges between the topand side walls of the upper section, these to act as longitudinalbracing ribs for that section; and similar metal strips, as shown alsoat 2| in Figs. 1 and 3, are applied along the four vertical corner edgesof said upper section, these latter strips acting not only to establishthe upper section as such by binding together the meeting edges of itsside and walls, but, also, to incorporate vertical bracing ribs for thesection. These fasteners carry a plurality of integral prongs (notshown) struck out from their metal incident to the formation of theirlightener holes 2la, and these prongs are sent through the papermaterial of the walls of the section and clenched tight against theinner sides thereof.

Reverting now to the lower section III, in which connection see Fig. 4,similar metal fastener strips 2l' are applied to the four verticalcorner edges of that section and similarly secured to the paper materialof the walls thereof. Thus, the lower section Ii, like the upper sectionIII. is provided with vertical bracing ribs along its four verticalcorner edges.

a small half-round opening cut away at about the center of its upperedge, and the inner plies I! of the side walls of the lower sectionwhich are most remote from said half-round opening have portions cutaway to provide very small rectangular recesses at the inner sides ofthese side walls. In Figs. 1 and 4, such half-round cutout is marked 22,and such rectangular cutouts are marked 23. These last will hereinafterbe called the carbon holder pockets.

Such cutouts, which have to do with the facilities provided for thefeeding of work sheets to writing position as hereinafter explained, areso located and are so relatively small that, as will be understood,their presence has no appreciable weakening effect on the lower sectionII.

The upper section H) has its top wall I8 cut away to provide a fairlylong writing opening 24, which opening 24 is continued as a shorter andwider feeder opening 25. The opening 25 extends all the way to the topedge of the adjacent end wall IQ of the upper section 10, the centralupper portion of which end wall has a cutout 26. This cutout 26 matchesthe half-round cutout 22 in the lower section II when the two sectionsare fully telescoped to complete the box.

It will be noted, referring to Fig. 1, that the right-hand limit of thewriting opening 24 in the top wall l8 of the upper section is such thatthis opening is wholly to the left of the carbon holder pockets 23. Itwill be seen, also, that the writing opening 24 is of sufficiently lesswidth than said top wall l8 to provide that fairly wide strips of suchtop wall, marked [8a, and stiffened by the metal corner fasteners 2|running therealong, extend not only lengthwise of the writing openingbut also lengthwise of the feeder opening 25, to merge with the sideportions of the adjacent end wall I! of the top section and thus providetop corner edges at opposite sides of said end wall.

Supported onthe lower section II, so as toextend under the writingopening 24 and the feeder opening 25 in the top section I0, is a writingplate 21 of metal or other relatively hard material. This plate isdesirably made of light gage metal only about as heavy as thatordinarily used for the making of so-called tin cans.

As illustrated most clearly in Fig. 5, the writing plate comprises amain portion or writing plate proper 21a having a downwardly inclinedramp 2") over which the .work sheets pass toward writing position, thisramp terminating at its lower work sheet-receiving end in an undercurlededge portion 210. Along each of its sides the writing plate hasdependent flanges 21d and 212, these flanges being staggered as shownbest in Fig. 5, but so disposed that when the flanges 21d are closeagainst the outer surfaces of the side walls of the lower section, theflanges 210 are snugly engaged with the inner surfaces of said sidewalls. Similarly staggered flanges 21d and 21h depend from the front endof the writing plate, these for seizing between them the inner and outersurfaces of the end wall of the lower section which has therein thehalf-round opening 22. Partially in the writing plate proper 21a andpartially in the flange 21g is a substantially circular opening 211, thelower portion of which matches with said opening 22, as shown in Fig. 4,when the parts are arranged as there illustrated.

Registration of the forms on the writing plate may be accomplished inany suitable or desirable way. As here shown, each form is provided with7 a pair ofform-registering apertures, and, for coaction with theseapertures, the delivery end of the writing plate 21 is provided with apair-of stopping and aligning pins '22. These pins, and also that partof the opening 211 ofthe writing section; this half-round opening 22then matching as aforesaid the similar opening 28in the.

upper section III. 1 Y Referring to the carbon sheet equipment, thecarbon sheet employed isa true or precut sheet 29. Fig. 1 shows two ofthese sheets in use. These sheets trail toward the delivery end of thewriting plate away from their ends which are anchored to the plate nearthe receiving end of the latter. As shown in Figs. 1 and 8, eachanchored end of a carbon sheet 29 is held between two leaves of alongitudinally folded thin metal strip 30, said end being tightlygripped between these leaves by indentations made in the upper leaf asseen in Fig. 1. The lower leaf of eachof. these holder strips isprolonged beyond the ends of the upper leaf, and each of theseprolongations has a thin elongated slot a therein. These slots takesmall extensions 2': upstanding from the ramp 21b of the writing plate.These extensions have oppositely located ears 21m at elevated pointsthereon. In assembling the device, when the carbon sheet holders havebeen mounted to string their slots about the lower portions of theseextension 211:, the ears of each such extension are oppositely twistedas indicated in Fig. 1, thus permanently to secure the carbon sheets inplace. The prolongations of the carbon holders 30 which carry the slots30a, are at their extreme ends beyond such slots accommodated in thecarbon-holder pockets 23 in theside walls of. the lower section.

It will be noted that the fltments just described are located beyond theside edges of the work sheets so that, as one set of work sheets isdrawn forward after, another over the writing plate, following theinitial properinterleaving of the work sheets of the leading set withthe carbon sheets in assembling the device, there is no interferencebetween these work sheets and the carbon sheets,

and the carbon sheets are always in working position relative totheir-appointed work sheets. These carbon sheets are of such lengthsforward of their points of anchorage that they extend over all the partsof the work sheets on which entries will be made; the writing capacityof .the. carbonsheets .being suflicient to take care or all the car-'bon copies which can be 'made. onthetotal'number of work sheets tobestored in the casing when finished at the factory of the maker.

Somewhat ahead of the pins 28, the device is provided with a transversemember 3| to hold the leading ends 32a of the leading set 32 of worksheets down-toward the writing plate and so that the apertures in thesheets of such set cannot become accidentally detached from said pins.Here, however, this member 3| is mounted on the top wall of the uppersection I0. Said member is merely a transversely rounded metal striphaving reduced ends or terminal tabs 3| a sent through holes 2 In of thecorner fasteners 2| running along the sides of the top wall l8 of theupper section and through holes in said wall matching these holes 2|a.These holes 2|a are desirably so located that-they are in a linecrossing the device perpendicular to the line of travel ofithe work Isheets over the writing plate. Said tabs lla, after being sentthroughthe holes 2 la, are bent toward eachothe net-then squeezed tight againstthe undeesurfaee offsaidtop wall (see Fig. 7). By a construction of this;kind, not only is the writing platesimpliiid and cheapened, but theleast vstrong'pa'rt of the upper section is strengthened andbraced wheresuch strengthening and bracing is most needed; the member 3| acting asan important bracing and stiflening member.

In assembling the device, the pile of zigzag folded work sheets,desirably printed and provided with transverse lines of perforations 33between forms, is placed in the lower section II and the leading lengthof the pile is looped as indicated at 24 in Fig. 2. Then, with the formsof the leading set properly interleaved with the carbon sheets 29 andwith all these sheets lying on the writing plate 21, and with the carbonsheet holders 38 secured permanently in place as above explained, thewriting plate is mounted on the side walls of said lower section II andon the end wall thereof which has the half-round opening 22. Thedependent flanges of the writing plate for embracing these wallsimmovably and solidly set the writing plate in' the intended position;an accompanying result being that this plate acts as a tieplate, rigidin its own main or horizontal plane, to hold the major lengths of thetwo side walls of the lower section rigid and parallel and to hold theintervening end wall of said section rigidly perpendicular to such twoside walls, thereby causing these three casing walls to brace andstiffen each other and in turn to brace and stiffen all the five wallsof the lower section.

The form-registering apertures of the work sheets on the writing platehaving been engaged I with the stopping and aligning pins 28, the uppersection I U is telescoped over the lower section Ii.

. narrow and fairly thick cardboard or wood strips cemented or otherwisesuitably fastened in place along the under surface of the top wall ofthe upper section close up against the side walls iof thatflsection. Asindicated in Fig. 2, these j -.strips35 extend from. the delivery end ofthe casing back to the carbon holder pockets 23.

Finally, the upper and lower'sections of the casing are secured togetherby a suitable adhesivewater glass for instance--the intention being thatthese parts It and II shall be held together against separation withoutdestruction. I

The operations described above are intended to be performed at thefactory.

In use, the operator makes the desired entries upon the uppermost of theset of forms in place on the writing plate, grasps the end of thesesheets by way of the thumb-opening afiorded by the cutout 217' atthedelivery end of the writing plate, advances them one form-length bymanual pull, and severs the same'by holding the strips now on thewriting plate and snapping the advanced sheets therefrom along a line ofper- .forations 33. These operations are continued from time to time asrequired until all the forms are used up and the casing ready to bedestroyed or discarded, whereupon a new container with a similarpreloaded supply of work sheets and carbon sheets is put into use.

The term chip board as used herein should be understood to includepressboard or cardboard of various kinds, as well as-other equivalentsthereof, and the term "paper material" as used herein should beunderstood to include chip board or corrugated board or equivalents.

Variations and modifications may be made within the scope of thisinvention and portions of the improvements may be used without others.

I claim:

1. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, both of said sections having all their walls ofpaper material, the top wall of the upper section having a writingopening, the combination with said sections of a metal writing plateinterposed between them, said. plate having depending flanges some forengaging the inner surfaces of the sidewalls and of the intervening endwall of the lower section and some for engaging the outer surfaces ofsaid three walls.

2. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, the top wall of the upper section having a writingopening, the combination with said sections of a metal writing plateinterposed between them, said plate having depending flanges some forengaging the inner surfaces of the side walls and of the intervening endwall of the lower section and some for engaging the outer surfaces ofsaid three walls, the walls of said sections being made of papermaterial; and bracing ribs secured to at least one of the sections, saidbracing ribs running along angularly offset corner edges of the casing.

3. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be--joined against separationwithout destruction, both of said sections having all their walls ofpaper material, the combination with said sections of a metal writingplate interposed between them, said plate having depending flanges somefor engaging the inner surfaces of the side walls and of the interveningend wall of the lower section and some for engaging the outer surfacesof said three walls, the top wall of the upper section having a writingopening therein exposing the writing area of the writing plate, saidwriting opening having extended along both sides thereof strip-likeportionsof said top wall, said top wall portions joining the upper endof the adjacent end wall of the upper section to provide corner edgesfor said end wall at opposite ends of the top thereof.

4. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, both of said sections having all their walls ofpaper material, the combination with said sections of a metal writingplate interposed between them,

said plate having depending flanges some for engaging the inner surfacesof the side walls and of the intervening end wall of the lower sectionand some for engaging the outer surfaces of said three walls, the topwall of the upper section having a writing opening therein exposing thewriting area of the writing plate, said writing opening having extendedalong both sides thereof strip-like portions of said top wall, said topwall portions joining the upper end of the adjacent and wall of theupper section to provide corner edges for said end wall at opposite endsof the top thereof, one of saiddepending flanges on the writing plateextending between the corner edges last-mentioned at the outer surfaceof the end wall of the lower section.

5. In a manlfolding assemblage having a oneuse-casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, the top wall of the upper section having a writingopening, the combination with said sections of a metal writing plateinterposed between them, said plate having depending flanges some forengaging the inner surfaces of the side walls and of the intervening endwall of the lower section and some for engaging the outer surfaces ofsaid three walls, the walls of. said sections being made of papermaterial with the side walls being reinforced throughout their lengthand bracing ribs carried by said sections, said ribs applied alongvertical corner edges on both sections and along side corner edges ofthe top wall of the upper section.

6. In a manifolding-assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, both of said sections having all their walls ofpaper material, the top wall of the upper section having a writingopening, the combination of a stiffening means for said sectionsincluding a metal writing plate interposed between them, and havingextensions flatwisely engaging and seizing walls of the lower section;carbon sheets on the writing plate; and other extensions on said plate,there being recesses in the side walls of the lower section forreceiving the extensions last-mentioned, which extensions carry meansfor permanently anchoring the ends of such carbon sheets in the casing.

7. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, both of said sections having all their walls ofpaper material, the top wall of the upper section having a writingopening, the combination with said sections of a metal writing plateinterposed between them, said platehaving depending flanges some forengaging the inner surfaces of the side walls and of the intervening endwall of the lower section and some for engaging the outer surfaces ofsaid three walls, positioning means for the leading set of work sheetscarried by the writing plate; and means for holding these work sheets onsaid positioning means, the means lastmentioned being carried by theupper section and connected thereto to draw the side walls of the uppersection tight against certain of said flanges.

8. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, both of said sections having all their walls ofpaper material, the combination with said sections of a metal writingplate interposed between them, said plate having depending flanges somefor engaging the inner surfaces of the side walls and of the interveningend wall of the lower section and some for engaging the outer surfacesof said three walls, the top wall of the upper section having a writingopening therein exposing the writing area of the writing plate, saidwriting opening having extended along both sides -thereof strip-likeportions of said top wall, positioning means for the leading set of worksheets carried by the writing plate; and means for holding these worksheets on said positioning means, the means last-mentioned carried bythe upper section and connected to said strip-like portions toact as adraw-bar coupling therebetween at a point comparatively remote from thatpart of said top wall 7 where uninterrupted laterally by the writingopening.

9. In a'manifolding assemblage having a oneuse casing to be discarded,when the work sheet contents are used up, including a, pair oftelescoping upper and'lower sections to be joined against separationwithout destruction, both of said sections having all their walls ofpaper material, the combination with said sections of a metal writingplate interposed between them, saidplate having depending flanges somefor engaging theinner surfaces of, the side walls and of the interveningend wall of the lower section and some for engaging the outer surfacesof said three walls, said side walls being reinforced along theirlength, the top wall of the upper section having a writing opening, andbracing ribs applied longitudinally of the upper section, certain ofsaid ribs being exterior of such section and some interior thereof,

10. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, both of said sections having all their walls ofpaper material, the combination with said sections of a metal writingplate interposed between them, said plate having depending flanges somefor engaging the inner surfaces of the side walls and of the interveningend wall of the lower section and some for engaging the outer sm'facesof said three walls, the top wall of the upper section having a writingopening, and bracing ribs applied longitudinally of the upper section,certain of said ribs being externally applied metal angles extendingalong the side corner edges of the top wall of the upper section, andothers thereof be ing applied to the under-surface of said top wallbeyond the lateral limits of the work sheets on the writing plate.

11. In a maniioiding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair of talescoping upper and lower sections to be joined against separation withoutdestruction, the top wall or" the upper section having a writingopening, the combination of an upper section at least mainly of papermaterial, a lower section also at least mainly of paper material; and ametal writingplate interposed between the two sections when telescoped,said plate carrying means for positioning the same on the lower sectionbracingly of the latter, said lower section being folded up from asingle blank of corrugated board and including side walls of two-plythickness with the corrugations of one of said plies of each side wallextending at right angles to the corrugations of the other ply of thatwall.

12. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined the corrugations ofone of said plies of each side wall extending at right angles to thecorrugations of the other ply of that wall, said writing plate havingdepending flanges embracing between them inner and outer surfaces of theside walls and of the intervening end wall of the lower section.

13. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, the top wall of the upper section having a writingopening, the combination of an uppersection at least mainly of papermaterial; a lower section also at least mainly of paper material; and ametal writing plate interposed between the two sections when telescoped,said plate carrying means for positioning the same on the lower sectionbracingly of the latter, said lower section being folded up from asingle blank of corrugated board and including side walls of two-plythickness with the corrugations of one of said plies of each side wallextending at right angles to the corrugations of the other ply of thatwall, said writing plate having depending flanges embracing between theminner and outer surfaces of the side Walls and of the intervening endwall of the lower section, the top wall of the upper section having anopening exposing the writing surface of the writing plate, suchopeningextending only at the central portion of the top wall of the uppersection as far as the end wall last-mentioned.

14. In a maniiolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, the top wall of the upper section having a writingopening, the combination of an upper section at least mainly of papermaterial, a lower section also at least mainly of paper material; and ametal writing plate interposed between the two sections when telescoped,said plate carrying means for positioning the same on the lower sectionbracingly of the latter, said lower section being folded up from asingle blank of corrugated board and including side walls of two-plythickness with the corrugations of one of said plies of each side wallextending at right angles to the corrugations oi the other ply of thatwall, said writing plate having depending flanges embracing between andof the intervening end wall of the lower section, the top wall of theupper section having an opening exposing the writing surface of thewriting plate, such opening extending only at the central portion of thetop wall of the upper section as far as the end wall last mentioned; atie bar spanning such opening near said end wall; and means for holdingwork sheets on the writing plate included in which means is said tiebar, said tie bar being a strengthening element of the casing becauseconnected to portions of the top wall of the upper section beyond theopposite sides of the writing opening.

15. In a manifolding assemblage having a oneuse casing to be discardedwhen the work sheet contents are used up, including a pair oftelescoping upper and lower sections to be joined against separationwithout destruction, the top wall of the upper section having a writingopening, the combination of an upper section at least mainly of papermaterial; a lower section also at least mainly of paper material; and ametal writing plate interposed between the two sections when telescoped,said plate carrying means for posttioning the same on the lower sectionbracingly of the latter, said lower section being folded up from asingle blank of corrugated board and including side walls of two-plythickness with the corrugations of one of said plies of each side wallextending at right angles to the corrugations of the other ply of thatwall, said writing plate having depending flanges embracing between theminner and outer surfaces of the side walls and of the intervening endwall of the lower section, the top wall of the upper section having anopening exposing the writing surface of the writing plate, such openingextending only at the central portion of the top wall of the uppersection as far as the end wall last-mentioned; said upper section beingof chip board, and there being metal reinforcing strips of angularcross-section applied along the four vertical corner edges of bothsections, and also along the two side corner edges at the top of theupper section.

16. In a manifolding device having a casing including a pair oftelescoping inner and outer sections having their walls mainly of papermaterial, the top wall of the outer section having a writing opening,the combination with said sections of a metal writing plate interposedbetween them and disposed below the writing opening and having dependingflanges interlocked with and bracingly engaging an end and the sidewalls of the inner section, the side walls of the inner section being atleast of double thickness throughout a major portion of their length toadequately support the writing plate.

1'7. In a manifolding device having acasing including a pair oftelescoping inner and outer sections having their walls mainly of papermaterial, the top wall of the outer section having a writing opening,the combination with said sections of a metal writing plate interposedbetween them and below the writing opening and having depending flangesbracingly engaging an end and the side walls of the inner section, theouter. section having bracing ribs applied along the side corner edgesof the top wall thereof adjacent the writing opening whereby the top issusbtantially covered along the margin of the opening.

18. In a manifolding assemblage having 9. casing including a pair oftelescoping inner and outer sections having their walls mainly of papermaterial, the top wall of the outer section hav'mg a writing opening,the combination of a stiflenlng means for said sections including ametal writing plate interposed between them and having extensionsbracingly engaging the side walls of the inner section to hold the sameagainst lateral movement, carbon sheets on the writing plate, and otherextensions on the said plate carrying means for permanently anchoringthe ends of such carbon sheets in the casing.

19. In a manifolding device having a pair 0! telescoping inner and outersections having their walls at least mainly of paper material, the topwall of the outer section having a writing opening, and a metal writingplate interposed between the two sections when telescoped, said platecarrying means for positioning the same on the inner section bracinglyof the latter, said inner section being folded up from a single blank ofcorrugated board and including side walls of twoply thickness for amajority of their length with the corrugations of one of said plies ofeach side wall extending at right angles to the corrugations of theother ply of that wall.

20. In a manifolding device having a casing including inner and outersections having their walls mainly of paper material, the top wall ofthe outer section having a writing opening, the combination with saidsections of a metal writing plate interposed between them and disposedbelow the writing opening, and having means thereon engaging the sidewalls of the inner member to be interlocked therewith to prevent lateralmovement of the side walls.

21. In a manifolding device having a casing including inner and outersections having their walls mainly of paper material and adapted toreceive for use therein continuous superposed work sheet strips, the topwall of the outer section having a writing opening, the combination withsaid sections of a metal writing plate interposed between them anddisposed below the writing opening and over which the continuous worksheet strips are adapted to be disposed for use, and having meansthereon engaging the side walls of the inner member to be interlockedtherewith to prevent lateral movement of the side walls, and advancedover the platen the sections of the casing and plate being provided withaligned openings through which the fingers can be inserted and the worksheets gripped.

CARL W. BRENN.

, CERTIFICATE OF comcnjom. Patent No. 2,178,096. camber- 1 19 9.

' CARL i4, BRENNQ It is hereby certified that eri'orYap'pes u-g in theprinted specificationl of the above nunbered atent requiring correctionas ifollows: Page 2, first column, line 57, before the word "walls"insert and; and second co1u mn, line 60, for "flanges 27a" read flanges27s page 6, second columng line 5 8, claim 21, strike out "and advancedover the-platen" and insert the same aften "gripped" and before theper'io d 'in iine 61, same claim; and that the said Letters Patentshould be read with this correction therein that the same may conform tothe record-of the case in tlie Patent Office.

Signed and sealed this 26th dax of December-,1 D. 1939.

- t :Henry Van A redale, 7 (Seal) Acting- Commissionezr of Patents.

